In a world where gods, devils, angels, and all other mythical or legendary beings exist, humans hardly know of their existence. They think of them as nothing more than myths and legends, which the supernatural intends to keep. However, there are a few who do know of the truth, with one having their sights on bringing it down...

It was a cold night within the Underworld, the home of devils and fallen angels. There was a slight gust of wind in the air as the long and empty valley was silent, too quiet. However, in one particular area, it was quite the opposite.

No one's POV

Flames and smoke covered the land of a clearing. The smoke rises all the way up to the sky. A red blur quickly crashes into the ground from the sky above, creating a massive crater upon impact, sending debris and dust flying. Someone within the crater coughs as they weakly try to crawl out from the hole, but was too injured to, causing them to fall on their stomach. 

As the dust settles, the person who was in the crater seemed to be in a sort of red armor. It also had green jewels that cover the person's body. The armor has two rocket thrusters on its back as well.

However, the armor was cracked and beaten all over, with blood dripping from some of the cracks. The person weakly tried to look over their shoulder behind them, but as they did, their armor suddenly began to glow before vanishing from the user, revealing a young male under the suit. 

The male looked to be a high school student of average height with short spiky brown hair, with two short locks of hair behind his head, and light brown eyes. He wore what looked to be a regular school uniform, which consists of a black blazer over a red, t-shirt with black highlights with a black ribbon on the collar, blue pants, and white sneakers. 

The boy looked to be seriously beaten up as his clothes were torn in dozens of areas, with blood-stained on them as well. He wheezes and coughs violently before coughing up blood onto the ground. 

"D-damnit... He's t-too strong even for me..." He mutters to himself weakly as he tried to push himself up again, successful this time. However, as he did, his body felt soar and stung all over the place, making him wince while grunting and groaning in pain. 

As this happened, he could faintly hear the sound of a pair of heavy footsteps approaching him from behind the flames and smoke. His eyes widen in horror and gasps softly as he heard chains rattling from behind as well. He quickly spun around as he held his left arm with his right hand, trying to get into a battle stance while seeing a silhouette approaching from the flames. 

The silhouette of the person looked massive and extremely muscular. They also wore some kind of armor, but far different from the boy's own armor. And it seems that they had two blades on their back with chains attached to their handles, which was the cause of the rattling. 

"N-n-no way...he's still alive?!" The boy shouts in shock. Each time he heard the person make another step, more sweat forms on his face. Just as he was about to try to run away, he saw an armored boot step out of the flames. 

Within the flames, a man walks out. He was extremely muscular and even though he was several feet away from the boy, it was clear that he was much taller than him. He wore green armor with brown parts on his left arm, boots, and his abs. He had an extendable blade on his left wrist along with a grenade launcher on his shoulder. The lens on his helmet blocked anyone from seeing his face, but that doesn't matter as he had an aura of rage radiating from him, giving him an ominous and frightening look. The only parts that were exposing his skin were his arms, which showed off veins popping out from his skin. 

(^Art by ChristianWillett^)

On the top corner of the man's helmet, there was a small red symbol engraved into the helmet, his symbol. 

On his back were a pair of ancient swords made of some kind of stone-like material. On the ends of the handles were chains strapped together. 

The man doesn't say anything as he menacingly approaches the boy, who looked absolutely terrified as his body froze up while visibly shaking.  With each step the man took the ground barely cracks under his boots, making the boy even more terrified by the approaching Titan. 

"S-stay back!" The boy shouts, trying to hide the fear in his voice. He lifts his left arm into the air and a flash of light was summoned before a red gauntlet with a green orb materializes onto his wrist. As that happened black demon-like wings burst out of his back.

"..." The man in green armor stayed silent as he continues to approach him, not even showing a slight hint of hesitation or fear.

Seeing this, more sweat forms on the boy's face. Just as he grits his teeth, the two heard a sonic boom from above, causing them to stop and look up to the source. And before they could find what it was, a green blur flew in between the two at an incredible speed. The thing then crashes into the ground, causing a massive shockwave as more debris and dust flying everywhere. The boy covers his face with his arms as the man just stares, not flinching at all. The flames and smoke around them flew along with the shockwave, but don't die down. 

"This is madness, y/n!" Shouts a feminine voice within the new crater, sounding like they were in armor as well. The two saw a new silhouette stand up within the dust before said dust was blown away, revealing a third person. 

This one had armor similar to the boy's, though was clearly different. It had a feminine figure unlike the boy's and had a much bulkier look to it as well. It was green for the most part and had silver spikes around it with the orbs being navy blue. But instead of having the same helmet design as the boy's, it was more shaped like a knight's helmet, including feathers on the back of the head as well. And in its hands was a massive shield almost as tall and wide as the user was. And in its right was a javelin stick, much like a knight's in a fairy tale. It also had a long tail as well, the tip being a sharp blade. 

The woman glares at the man, y/n, under her helmet as she grits her teeth. Under the helmet was a young woman who looked to be in her mid-twenties. She had long curly black hair with strands of white. She had rather pale skin with navy blue eyes. There was a small mole under the bottom left side of her lip. 

"..." Y/n doesn't say anything as he stares at the girl under his helmet. And he doesn't move either, which made the boy a bit relieved and sighs internally. 

"Issei!" The woman shouts, regaining the boy's, Issei's, attention. 

"Y-yeah, Delilah?" He asks nervously. 

The woman, Delilah, glances over her shoulder at the teen before returning her gaze to the male in front of her. "How bad are your injuries? Can you get out of here by yourself?" 

Issei looks both shocked and worried by her question. "W-what? Do you seriously plan on taking him on all by yourself?! You'll be-!" 

"Y/n won't kill me! I'm the only one that he won't!"  Delilah shouts, her eyes glued onto y/n as he was still standing. "You have to trust me on this!"

Issie looks worried when she was done. He hesitates to answer. His eyes glance over at y/n, who wasn't even paying attention to him. Quickly though, he grits his teeth and shook his head. "Fine! But you better come back alive, you hear?!" 

"I will! Go to the survivor camps and-!" 

As they talked, y/n's hands' balls into fists, becoming agitated. He dug his heels into the ground and squats before suddenly launching himself into the air quickly. He reels his right arm back as he flew towards Delilah, whose eyes widen under her helmet as she gasps. She lifts her shield just in time as y/n was just on top of her and thrust his arm forward. The shield blocks his fist and from the impact created a shockwave that sent dirt flying around the two. Delilah felt her feet begin to slip on the ground and growls before digging her heels into the dirt as she tried to not let y/n overpower her. 

"Go, now!" She orders Issei while glancing over her shoulder at him. 

Issei looks stunned when he saw the two collide, but quickly snaps out of it though when he heard Delilah. He nods quickly as he glances at y/n. "Right!" 

And with that, Issei leaps into the air and flew off with the help of his devil wings. But as he did, he couldn't help but look over his shoulder at the battlefield, gritting his teeth again and growling. "How can a human have this much power?" He asks himself before focusing on flying away. 

Back to the fight, the two left stare where the boy flew off two. However, Delilah quickly snaps out of it and focuses back on the man in front of her. "This is insane, y/n! Snap out of this!" She pleads, hurt in her voice.

After speaking, for a split second, Delilah thought she saw behind the lens of his helmet and saw his face. She thought she could see the pain in his eyes, which made her freeze for a second. However, that was a mistake as y/n took this moment of hesitation as an advantage and used his other fist to punch the shield, with enough force to send Delilah flying back, who manages to catch herself. 

As she did, y/n straightens up but doesn't move for whatever reason, confusing the woman. He just stood there for a few moments, before a voice eventually spoke. 

"The Slayer does not wish to fight you, Delilah." A robotic male voice says from y/n's helmet.

Delilah flinches a little from the voice but quickly regains herself as she stood up straight as well. "I know, Vega." She says softly before her voice raises. "But starting a mass genocide against all of the supernatural doesn't make any of this okay! Not everyone is as bad as you think!"

"..." Y/n lowers his head from her response. He still refuses to speak as he clenches his gloved hands tightly. 

""If that was true, then all of this would never have happened." Is what he's saying." Vega responds, making Delilah frown under her helmet and close her eyes.

"You know I understand that...but, still, you just can't decide the fates of others who were never involved...!" Delilah reopens her eyes after she was done and lets out a battle cry. The thrusters on her back activate and quickly power up before she was suddenly sent flying towards y/n with an incredible speed. He looks up at her and glares at her under his helmet as he saw her flying at him quickly. 

Meanwhile...

In the sky, Issei was still flying in the air. He looks down at the ground below and clenches his fists as his face scrunched up. "I can't let her do all the work while I run away! This is bullcrap!" He shouts into the air. 

"You know you don't have a chance against him, Issei." A deep voice says, causing him to calm down and stare at his left hand.

"Yeah, I know. But I don't care! He's too dangerous for her to take on alone!" 

"But if you try to fight him head-on, he'll just kill you."

Issei growls in anger. He looks away for a moment to think before an idea hits him. "If I can't fight him head-on, then I'll just aid Delilah!" He says.

"Are you sure you want to do that?" 

Issei nods with a determined face.

The voice was quiet for a moment before it eventually sighs. "Very well." 

Issei smiles as he stops flying. "Thanks, Ddraig." He says while turning around and began to fly back. 

"Don't thank me. Just be extremely careful."

"Got it!" 

With that, the two went silent as Issei focuses on flying.

...

Y/n was sent flying into a rock wall. The impact was so strong that he created a large crater within it and the ground shook beneath him. He tried to pull himself out of the crater, but before he could, Delilah flew at him and stabs him with her javelin, enlarging the crater. She then began to give a furry of jabs and stabs onto y/n's armor, though none seem to be able to pierce through it. Still, each one was powerful enough to dig him deeper and deeper into the crater. Delilah wasn't giving him a chance to fight back at all, her speed too quick to even see. 

"Maybe this will knock some sense into you!" She shouts. 

She leaps back once she was that y/n was too deep into the hole to even move. She lifts the tip of her javelin into the air and a ball of energy materializes over it. It grew to the size of a person before she aims her weapon at y/n and a massive beam of energy was shot out. It was so large that the beam consumes the pillar of rocks that y/n was stuck in and disintegrates all of it into nothing. Soon though the beam dies down and Delilah lowers her weapon, panting heavily as sweat travels down her face. "Think that did it..." She mutters to herself as she saw that nothing was left from where y/n was before, only steam.

https://youtu.be/HsLOxbLZMy8

Just as she was about to let her guard down, flames explode from the area y/n was. The sky turns blood red as the fire spreads into a large circle, surrounding the area in a wall of fire. 

Delilah's eyes widen in horror as she saw all of this happen. 'H-he's gotten so powerful...' She thought to herself before she heard another explosion where it began, debris flying into the air before turning into ash. 

At the center, the silhouette of y/n was seen slowly getting up on his feet within the flames. However, something happened to him. Within the fire, Delilah could see y/n's eyes glowing a fiery orange. He slams his feet into the ground as he stood up, each foot causes a small tremor. The fire surrounding him began to spin in a tornado-like movement high into the air. The sounds of thousands of painful and agonizing demonic screeches and screams filled the air. But soon, the flaming tornado disperses and the screams stop. 

Y/n didn't look like himself anymore. His skin under all the armor was now orange and the brown parts of his armor were red. His blade and feet were engulfed in flames as his grenade launcher was glowing orange from inside. 

Delilah was shaking from the intense hate and rage she was sensing coming from y/n. "H-holy cra-." 

Before she could even finish, in the blink of an eye, y/n vanishes from where he once stood in a ball of flames. Then, at the same speed, reappears in front of Delilah, causing her to gasp. Time seems to slow down as the two barely made eye contact. But it ended quickly as y/n reels his arm down and punches her in the gut at an intense speed. Delilah couldn't even react in time as she was already winded by the single punch, causing her to cough up blood as her armor shatters under his fist. This created an even larger shockwave than before and she was sent flying back far, crashing into a pillar of rocks. She yells in pain from the impact of the punch but was cut off again as y/n appears in front of her again. He grabs her by the face, spun her around, and threw her several yards away and into the ground. She was too dazed to even move as she rolls like a ragdoll and eventually stops, which resulted in y/n appearing over her. He reels his arm back and was about to crush her, but a red blur suddenly crashes into him and sent him flying and crashing away from her. 

As he and whatever recover, Delilah weakly rolls around and looks up to see that what stopped y/n was in fact Issei, who was in his armor again. This causes her to panic but felt her eyelids becoming too heavy for her to keep up. "N-no...you idiot..." She mutters before passing out onto the dirt.

Back to the two males, they both were recovering and stood up at the same time. 

"Is this what you wanted, asshole?!" Issei asks with venom in his voice. "Do you even realize what you've done to the one person who still cared about you?!" 

"..." Y/n stares at the boy under his helmet. He clenches his hands again as Vega spoke up.

"The Slayer wishes there were more people like you, minus the perverted nature of yours."

"Huh-?" Issei looks beyond confused by the statement, not expecting that kind of response. 

Before anything else could be said, y/n disappears and reappears behind Issei, who barely caught a glimpse of him. Y/n grabs him by the shoulder, spun them around, and threw him in the air. As Issei was about to try to recover, y/n grabs his blades from his back and threw both blades at the boy. The blades quickly met up with him and stabs through his armor at the face and chest, though barely misses his body. 

"C-crap!" 

Y/n yanks the chains back to him and leaps into the air to meet him in the middle. Once there, he grabs both handles and spun around, before throwing the boy over his head while letting go of the handles and grabs the chains. He slams him into the ground, creating yet another massive crater as the ground shook. He then dives after him and slams his boot into the kid's back, causing both the armor and his spine to snap under his weight. Issei screams in agony from the pain but was quickly silenced when y/n grabs his face and slams it into the ground over and over, each time the ground shatters more and more. 

After about the tenth time, y/n lets go of his head and got off of him. When he did, Isseis's armor disappears yet again as he was even more beat up and bloodied than before. He groans quietly as all he could see was the blood that was dripping down from his forehead and blocking his sight. 

Y/n walks around the boy and flips him face-up with his boot as the flames on his armor and around the area die down, returning everything to normal. He steps on his chest and stares down at the beaten boy, towering over him. He puts his blades away and pulls out a handle from his waist. 

He squeezes onto the handle and a massive red blade made of energy bursts out from the handle. On the blade were characters from an unknown language. 

He points the tip of the blade an inch away from Issei's face, who squints from the bright light in his face. The blade hums softly as the two didn't move as if y/n was hesitating to finish him off.

"The Slayer says that it's a shame to kill people like you and your friends. He wishes that you all were still humans to avoid doing this and wished you could have joined him. But he made a vow to exterminate every last one of the supernatural, no matter how kind or harmless one may be. He deeply apologizes for this horrible fate brought upon you and the rest."
As Vega spoke, y/n raises his blade over his head. He waits until Vega was done talking and a moment after to study Issei's beaten state. Soon though, he reels it back and slashes it down, causing everything to fade to black. 

...

Somewhere far in the distance, a young female was sitting on top of a cliff. She is a beautiful young woman with a voluptuous figure, long black hair with split bangs, and hazel-gold eyes with cat-like pupils. Interestingly, she has a pair of black cat ears and two black tails. Her attire consists of a black kimono, a yellow obi, a set of golden beads, and an ornately detailed headband. The kimono features a red interior and it is open at her shoulders, giving a view to her large breasts.

The female smirks a little as she saw the scene unfold in the distance.

"Well, well, well." She mutters to herself as her tails sway behind her. "The big boy kept his word...impressive." She giggles a little as she stood up, fixing her clothing as she did. "Now, we're almost done with this phase of the plan...then we can move onto the next step."

After she finishes, a purple magic circle was summoned under her feet. It consumes her, causing her to vanish to someplace else.

To be continued...?

Hey, all. I hope you all did enjoy this. I know that I said I won't be making the Highschool DxD story in a while, and I still am keeping my word on that. This isn't the reboot at all. This was just something like a test to see what you guys think of what I have in mind of a new story involving DxD. I wanted to see what you guys do and don't like before I make the reboot sometime in the future. 

As of right now, this will be the last thing I make for a while. College starts tomorrow so I have a big change in my life. I won't be updating for at least a week or two so I can get an idea of how my classes will be like before I decide when I can work on my stories again. If I can write again after the break, then that's great. If not, I hope you all do understand. 

Depending on the feedback on this while I'm on break, I may or may not make this an actual story. Again, this is just a test, not a real thing as of this moment. And if there's enough positive feedback, I will put this on one of my top priorities to update as well. 

So until then, I hope you all understand. And I hope you all have a wonderful day/night as well. Hope to see you all again soon. Bye.